Hi guys - I'm a first time wheel-buyer, and was seeking help on how to go about buying the correct wheels for my 2006 A3 3.2L Quattro S-Line.

I'm really set on picking up the VMR V708's in 18" Gunmetal. It looks like ECS has them going for $700 for a set of 4.

What do I need to know before purchasing? Any tips on where I can find these used?

Thanks in advance for any help/suggestions!